Description: A National Oceanic and Atmospheric Administration map of Port of Miami, Florida current to1975. This Department of Commerce chart shows all soundings expressed in feet at mean lower low water. Navigational aids such as lights, beacons and buoys are shown as well as obstructions such as shoals, submerged piles, wreckages, fixed bridges and overhead cables. The map scale is 1:40,000. Key to NOAA maps.Source: National Oceanic and Atmospheric Administration, Miami to Elliott Key (Washington, D.C.: U.S. Department of Commerce, 1975) Map Credit: Courtesy the U.S. National Oceanic and Atmospheric Administration